Finding the Fourth Proportional to 19,685,332.20, 29,527,998.30 and 17,346,991.80
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Solution
The fourth proportional to 19,685,332.20, 29,527,998.30 and 17,346,991.80 is: 26,020,487.70
Step by Step Solution
- Step 1: Write the proportion equation
19,685,332.20 : 29,527,998.30 = 17,346,991.80 : x - Step 2: Convert to fraction form
19,685,332.20/29,527,998.30 = 17,346,991.80/x - Step 3: Cross multiply
19,685,332.20x = 29,527,998.30 × 17,346,991.80 - Step 4: Simplify right side
19,685,332.20x = 512,221,944,380,514 - Step 5: Solve for x
x = 512,221,944,380,514/19,685,332.20 - Step 6: Final answer
x = 26,020,487.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.